An up coming project will require several users to connect to an arduino (which has some from-scratch circuitry), and I need the compiled Unity game to connect flawlessly to the arduino. From what I have learned, most of the time it is connecting to ‘com3’, ‘com4’… , but I cannot be assured it will always be the same port every time the Arduino is connected.
google: scan com ports for arduino C#
first result: